Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine General (Supplementary) (Set 18)
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Question 1 of 30
In the illustrated terminal reheat multiple zone system, what statement represents the functioning of the supply air duct thermostats controlling the preheater steam flow and the cooling coil chilled water flow? GS-RA-42 Illustration GS-RA-42: the U.S. Coast Guard has not released this illustration.
Browse Questions in Set 18
30 MCQs #1 In the illustrated terminal reheat multiple zone system, what statement represents the functioning of the supply air duct thermostats controlling the preheater steam flow and the cooling coil chilled water flow? GS-RA-42
Illustration GS-RA-42: the U.S. Coast Guard has not released this illustration. #2 Referring to the illustrated single zone HVAC system diagram, what statement is true concerning the damper controls? GS-RA-09
Illustration GS-RA-09: the U.S. Coast Guard has not released this illustration. #3 Referring to the illustrated dual duct multiple zone HVAC system, how is the space temperature directly controlled? GS-RA-43
Illustration GS-RA-43: the U.S. Coast Guard has not released this illustration. #4 Referring to the illustrated psychrometric chart, if the dry bulb temperature is 70F and the relative humidity is 50%, what is the absolute humidity? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #5 Referring to the illustrated psychrometric chart, if the measured dry-bulb temperature oo is 80F and the measured wet-bulb temperature is 70F, what is the determined relative humidity? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #6 Referring to the illustrated psychrometric chart, suppose air at a dry-bulb temperature of 60F and a relative humidity of 52% passes over a heating coil, resulting in sensible heat gain, and the off-coil temperature is now 80F. What is off-coil relative humidity? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #7 Referring the illustrated psychrometric chart, suppose during the heating season that air passes over a heating coil, and this results in sensible heat gain with no change in moisture content. What statement represents the direction of the air conditioning process line? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #8 Referring the illustrated psychrometric chart, suppose during the cooling season that air passes over a cooling coil with a mean surface temperature above the dew point temperature, and this results in sensible heat loss with no change in moisture content. What statement represents the direction of the air conditioning process line? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #9 Referring the illustrated psychrometric chart, suppose during the cooling season that air passes over a cooling coil with a mean surface temperature below the dew point temperature, and this results in sensible heat loss and dehumidification. What statement represents the direction of the air conditioning process line? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #10 Referring to the illustrated psychrometric chart, under what conditions are the dry- bulb, wet-bulb, and dew point temperatures for air all equal in value? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #11 Referring the illustrated psychrometric chart, suppose during the heating season where steam is injected into the air stream, this results in sensible heat gain and humidification. What statement represents the direction of the air conditioning process line? GS-RA-22
Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration. #12 48. You are unable to pump out the aft starboard engine room bilge well that is fouled, with one foot of water over the top of the bilge well, what action should be carried out? #13 Probably the most useful troubleshooting tools used in a predictive maintenance management program for shipboard machinery are vibration meters, analyzers, and monitors. What is the term that represents the distance a mass travels in a given direction as a result of a part vibrating during its periodic or oscillatory motion? #14 What is meant by a critical speed for rotating machinery? #15 The reading on the vernier caliper scale shown in figure "G" in the illustration is __________. GS-0082 #16 Many micrometers are equipped with a ratchet stop at the end of the thimble to __________. #17 For greater accuracy, some micrometers have a vernier scale making it possible to read in increments of __________. #18 To check the thickness of a piece of thin shim stock before using it to make a bearing shim, you should use a __________. #19 The proper tool used for cutting new external threads is called a thread __________. #20 With respect to machine shop "taps and dies", a plug tap is correctly used for __________. #21 The names plug, bottom, and taper refer to __________. #22 The best tool to use to measure the number of threads per inch on a bolt is a __________. #23 A metal scribe commonly found on a Combination Square measuring tool should only be used to __________. #24 The center head of a combination square set is used to __________. #25 Which of the devices shown in the illustration is designed for both inside and outside measurements? GS-0073 #26 To set the dividers to the proper radius, you should use a __________. #27 Which of the instruments listed is used to measure the gauge of a piece of sheet metal? #28 A dial indicator is used to measure __________. #29 Which of the figures in illustration GS-0080 would be used in conjunction with figure "B" of the device shown in illustration GS-0124? GS-0080 #30 Which of the figures illustrated is not suitable for use as a hex head set screw? GS-0080
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